Subj : Re: boost::threads entry point functor cannot by noncopyable?
To   : comp.programming.threads
From : Ulrich Eckhardt
Date : Fri Jan 14 2005 06:38 am

isaac wrote:
> It seems that if you want to wrap an entry point to a boost::thread in
> a functor, that functor must be copyable ( have a copy constructor ). 
> Why is this so? 

All algos in the standardlib require the functor to be copyable.

> And what are the best workarounds? ( say if your 
> functor uses a mutex which is defined as noncopyable ).

boost::ref, probably. Other than that, I don't use custom functors at all
for this: If I have an object (I mean a first-class object representing
the working-data of a thread) it also has a function called thread_entry()
which I then boost::bind together and pass to thread's ctor.

Uli

.